Thru Hull Fitting Sizes. *for model numbers 0350009plb and 0350009chr the oem packages contain one piece. 5.0 out of 5 stars4.
A particularly important part of annual maintenance is inspecting your boat thru hull fittings. As a general rule, you should fair a through hull over the area of a circle whose radius is equal to about 4” for every 1/8” the fitting protrudes above the surface of the hull.
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Available in 5 sizes from ¾” to 2”, they are reusable and work with both trudesign’s domed or recessed skin fittings(thru hulls). Available with or without nut.
Thru Hull Fitting Sizes
For example, the typical 1 l/2” through hull for a head discharge sticks about 1/4” above the surface of the hull.Free shipping on orders over $25 shipped by amazon.From my notes this equat
es to 3/4 inch bsp.I don’t have measurements for the other skin fittings as these all seem to be in good nick on my boat.
I plan to replace this through hull and seacock etc with tru design plastic fittings hopefully at the next haul out.I want to replace the thru hull under the galley sink.If your hull is cored beneath the waterline (unusual, but not unheard of) it’s better to drill a smaller hole out first, remove the core material over an area twice the diameter of the fitting, refill the cavity and hole with solid grp, and then drill out to the correct size for the fittings once totally cured.It measured in at 2.99 millimeters thick.
Nps thread with hose connection.Npsm / npt combination thread.Price and other details may vary based on size and color.Push the skin fitting (thru hull) installation tool back out by pinching the side clips, ready for use on the next skin fitting (thru hull).
Sizes from 1/2 to 2 barb.Sucks to spend 30 bucks for one hole.Take this measurement and add 1/4 of an inch.The apallo seacock has 500 marked on its body.
The boat is a 2012 french build so36i.The hose coming of the seacock is labeled 1 1/2 inches but the outside of the mushroom going to the seacock measures 1 7/8 with my cheap plastic calipers.What is the correct way to measure for thru hull diameters?You could probably use the bigger one and likely not have any problems.
You might get away with a spade bit for the 3/4 hole, if it is a sharp one, i have drilled thru 1/2 inch or better glass before with one.